This is an IoT project about diorama smart green home and here me and my class made a hydroponic system using micro:bit, relay, ultrasonic sensor, pipes, water pump, trash can and hose. The plant that we’re going to plant is bhok choy or pakcoy which is is a short-lived vegetable originating from China and belonging to the Brassicaceae family. How it works is that the ultrasonic will detect the water level and if the water level is too low it will send a signal to the micro:bit and then the micro:bit will turn on the second pump through the relay to take the water from the second bucket, all the signals that is sent is also sent to a dashboard website for this project. It took me and my friend around a week to finish this project.